Tafur Charry, Magda Paola, Angy Gaviria, Marilyn Ortigoza, Lina Losada, and Karen Lorena Vargas. 2019. “Variants Applied to the Control Scheme in Mining Companies in Ínquira – Huila”. The International Social Sciences Review 1 (July), 43-57. https://journals.eagora.org/SOCIALrev/article/view/1445.